COMPUTER HARDWARE
OUTPUT DEVICES
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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Microphone
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Speaker
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Monitor
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Scanner
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Detailed explanation-1: -We measure sound intensity (also referred to as sound power or sound pressure) in units called decibels. Decibels (dB) are named in honor of Alexander Graham Bell, the inventor of both the telephone and the audiometer. An audiometer is a device that measures how well a person can hear certain sounds.
Detailed explanation-2: -Noise level is measured in decibels (dB). The louder the noise, the higher the decibels. Decibels can be adjusted to human hearing. Noise level is thus described in decibels A (dBA).
Detailed explanation-3: -In summary, when you should use a sound level meter or a noise dosimeter. Use Sound Level Meters when you need to know the noise level of a particular task or process, or how noisy a piece of machinery or area is. Use Noise Dosimeters when you need to find out the direct noise exposure of an employee.